CN207991624U - The connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter - Google Patents
The connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter Download PDFInfo
- Publication number
- CN207991624U CN207991624U CN201721917842.9U CN201721917842U CN207991624U CN 207991624 U CN207991624 U CN 207991624U CN 201721917842 U CN201721917842 U CN 201721917842U CN 207991624 U CN207991624 U CN 207991624U
- Authority
- CN
- China
- Prior art keywords
- water meter
- electronic controller
- diode
- message
- split type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model is related to the connection circuits of electronic controller and message-reporting water meter in a kind of Split type intelligent water meter, include the electronic controller and message-reporting water meter of the connection of two signal cables, series diode D1 and diode D2 is distinguished on the two input signal cable K1 and input signal cable K2 of electronic controller, two signal input parts of electronic controller are separately connected the anode of diode D1 and diode D2, and, the diode D1 is identical with diode D2 models, is all made of the diode of model 1N4148.The utility model is isolated by induced voltage with electronic circuit; under the premise of ensureing normal signal transmission; achieve the purpose that protect electronic controller; peak signal length of cable under normal operation increases to 10 meters by original 2.5 meters; guarantee is provided for the flexible installation of electronic controller, greatly expands the application range of Split type intelligent water meter.
Description
Technical field
The utility model belongs to smart card water meter technical field, electronic controller in specifically a kind of Split type intelligent water meter
With the connection circuit of message-reporting water meter.
Background technology
For Split type intelligent water meter, as shown in Figure 1, there is two very long multicores between electronic controller and message-reporting water meter
Signal cable is connected.Line capacitance in signal cable can regard a flat capacitor device as, and medium is signal cable
Isolation material, the line capacitance in signal cable are directly proportional to the length of signal cable.That is, with the increasing of signal cable length
Add, induced voltage is higher and higher caused by signal cable distribution capacity, and what is transmitted in signal wire in addition is a kind of impulse wave, real
In the application of border, when signal cable length is more than 2.5m, this induced voltage leads to the Low-voltage Electronic circuit of connection enough
Operation irregularity, and then equipment fault is caused to take place frequently.
Invention content
The purpose of this utility model is in view of the deficiencies of the prior art, and to propose electronics control in a kind of Split type intelligent water meter
The connection circuit of device and message-reporting water meter processed.
The utility model solves its technical problem and following technical scheme is taken to realize：
The connection circuit of electronic controller and message-reporting water meter in a kind of Split type intelligent water meter, including two signal cables connect
The electronic controller and message-reporting water meter connect divides on the two input signal cable K1 and input signal cable K2 of electronic controller
Two signal input parts of other series diode D1 and diode D2, electronic controller are separately connected diode D1 and diode D2
Anode.
Moreover, the diode D1 is identical with diode D2 models, it is all made of the diode of model 1N4148.
The advantages of the utility model and good effect are：
1, the utility model is isolated by induced voltage with electronic circuit, under the premise of ensureing normal signal transmission, is reached
Protect the purpose of electronic controller.
2, the utility model cost is very low, due to electronic controller be based on battery powered super low-power consumption product, so
The power consumption of electronic controller is not influenced.
3, the utility model greatly expands the application range of Split type intelligent water meter, in actual test, signal line length
Reach 10 meters, electronic controller work is still normal, and guarantee is provided for the flexible installation of electronic controller.
Description of the drawings
Fig. 1 is the connection diagram between electronic controller and message-reporting water meter in current Split type intelligent water meter；
Fig. 2 be the utility model Split type intelligent water meter in connection signal between electronic controller and message-reporting water meter
Figure.
Specific implementation mode
The utility model implementation is further described below in conjunction with attached drawing, following embodiment is descriptive, is not
Limited, protection scope of this utility model cannot be limited by this.
The connection circuit of electronic controller and message-reporting water meter in a kind of Split type intelligent water meter, as shown in Fig. 2, including signal
The electronic controller and message-reporting water meter of cable connection, the innovative point of the utility model are, in two input letters of electronic controller
Series diode D1 and diode D2 respectively on number cable K1 and input signal cable K2, two signals input of electronic controller
End is separately connected the anode of diode D1 and diode D2.
It is described the characteristics of according to the working characteristics and signal cable of message-reporting water meter in the specific implementation of the utility model
Diode D1 is identical with diode D2 models, is all made of the diode of model 1N4148.
Operation principle
A 1N4148 diode is respectively concatenated on the input signal cable (K1, K2) of electronic controller, utilizes two poles
The one-way conduction characteristic of pipe is isolated by induced voltage with electronic circuit, under the premise of ensureing normal signal transmission, reaches protection
The purpose of electronic controller.This improved method, cost is very low, and is not influenced on the power consumption of electronic controller, practical to survey
In examination, signal cable length reaches 10 meters, and electronic controller work is still normal.
Claims (2)
1. the connection circuit of electronic controller and message-reporting water meter in a kind of Split type intelligent water meter, including two signal cable connections
Electronic controller and message-reporting water meter, it is characterised in that：In the two input signal cable K1 and input signal of electronic controller
Series diode D1 and diode D2 is distinguished on cable K2, two signal input parts of electronic controller are separately connected diode D1
With the anode of diode D2.
2. the connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter according to claim 1, special
Sign is：The diode D1 is identical with diode D2 models, is all made of the diode of model 1N4148.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917842.9U CN207991624U (en) | 2017-12-29 | 2017-12-29 | The connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721917842.9U CN207991624U (en) | 2017-12-29 | 2017-12-29 | The connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207991624U true CN207991624U (en) | 2018-10-19 |
Family
ID=63818691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721917842.9U Expired - Fee Related CN207991624U (en) | 2017-12-29 | 2017-12-29 | The connection circuit of electronic controller and message-reporting water meter in Split type intelligent water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207991624U (en) |
-
2017
- 2017-12-29 CN CN201721917842.9U patent/CN207991624U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20191229 |